Roots blower There are many applications in the chemical industry, which are widely used according to different working conditions, such as conveying chemical raw materials, conveying reaction gas, aeration mixing, sewage treatment, ventilation and exhaust, gas pressurization, pulse dedusting, and so on. The pneumatic conveying performance of Roots blower is mostly used. The temperature of roots blower is too high Analysis: ① High ambient temperature; ② The working pressure of fan is too high; ③ The oil in the oil tank is too much, too thick and too dirty; ④ The filter screen or muffler is blocked or the gate valves are not fully opened, and the system resistance is large; ⑤ The impeller is excessively worn with large clearance; ⑥ The running speed is too low, and the belt slips.
Solution: ① reduce the ambient temperature; ② Check the pipeline system and reduce the working pressure; ③ Reduce and replace the lubricating oil and remove the dirt in the oil tank; ④ Clean the filter screen or muffler and check the pipeline; ⑤ Repair and adjust the clearance of each part of the fan; ⑥ Increase the rotating speed to prevent the belt from slipping.
There is friction between roots blower impeller and impeller
Analysis: ① There are impurities on the impeller, resulting in too small clearance; ② The working pressure is too high, causing the impeller to be deformed; ③ Bearing and gear wear, resulting in large backlash; ④ The gear is not firmly fixed and cannot keep the impeller synchronized. Solution: ① Remove dirt or impurities, and check whether the internals are damaged; ② Reduce the working pressure; ③ Replace the bearing and adjust the gear clearance. If the gear backlash is too large, replace it; ④ Reassemble the gear and keep the taper fit contact area up to 75%.
Insufficient air volume of roots blower
Analysis: ① Inlet filtration is blocked; ② The impeller is worn and the clearance increases too much; ③ Belt slipping; ④ Large inlet pressure loss; ⑤ Pipeline leakage. Solution: ① Remove the dust and blockage of the filter; ② Repair and adjust the clearance of each part of the fan; ③ Tighten the belt and increase the number of belts; ④ Adjust the inlet pressure to the specified value; ⑤ Check and repair pipes.
Roots blower motor overload
Analysis: ① The selected parameters are unreasonable, and the working pressure is high, exceeding the rated value; ② The inlet filter is blocked, the pipeline does not match, or the outlet pipeline is blocked or blocked; ③ Excessive vibration; ④ The voltage of power supply system is too low; ⑤ The resistance of all rotating mating pairs (bearings, shaft sleeves, gears, seals, etc.) is high; Solution: ① Select the parameters correctly and adjust the working pressure to the rated value; ② Clean the filter, arrange pipes reasonably, and remove the blockage; ③ Check the working vibration of the fan, ④ check and change the power supply line. ⑤ Check all rotating mating pairs (bearings, shaft sleeves, gears, seals, etc.)
Oil leakage of Roots blower
Analysis: ① seal wear, resulting in oil leakage at shaft end; ② Oil level is too high; ③ Incorrect lubricating oil model; ④ The fan vibrates severely and the joint surface is loose; ⑤ Vents of wallboard and oil tank are blocked; ⑥ The pressure is higher than the specified value. Solution: ① Replace the seal; ② Lower the oil level; ③ Replace the specified type of lubricating oil; ④ Check the vibration and fasten the joint surface; ⑤ Open the vent under the wallboard; ⑥ Reduce system pressure.
How to select a good Roots blower manufacturer is a key issue. It is best to make a field survey to see the trial operation of the machine and check whether the Roots blower has the above fault problems. I have a mental expectation about the Roots blower. A good Roots blower manufacturer is one whose service and quality meet the standards
Label: Roots blower
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